Electron Incantation: Replacing the middle button on the Logitech M570 Wireless Trackball (or, yes, I really do love this trackball that much)
![Refurbished: Logitech Recertified 910-001799 M570 Black 5-button 1-wheel USB RF Wireless Laser Trackball - Newegg.com Refurbished: Logitech Recertified 910-001799 M570 Black 5-button 1-wheel USB RF Wireless Laser Trackball - Newegg.com](https://c1.neweggimages.com/ProductImage/26-104-797-07.jpg)
Refurbished: Logitech Recertified 910-001799 M570 Black 5-button 1-wheel USB RF Wireless Laser Trackball - Newegg.com
![Amazon.com: Logitech M570 Wireless Trackball Mouse – Ergonomic Design with Sculpted Right-Hand Shape, Compatible with Apple Mac / Microsoft, USB Unifying Receiver, Dark Gray (Discontinued by Manufacturer) : Electronics Amazon.com: Logitech M570 Wireless Trackball Mouse – Ergonomic Design with Sculpted Right-Hand Shape, Compatible with Apple Mac / Microsoft, USB Unifying Receiver, Dark Gray (Discontinued by Manufacturer) : Electronics](https://m.media-amazon.com/images/I/61QrqZ8uurL.jpg)